CN109519574B - Intelligent voltage regulating center - Google Patents
Intelligent voltage regulating center Download PDFInfo
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- CN109519574B CN109519574B CN201811651177.2A CN201811651177A CN109519574B CN 109519574 B CN109519574 B CN 109519574B CN 201811651177 A CN201811651177 A CN 201811651177A CN 109519574 B CN109519574 B CN 109519574B
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0075—For recording or indicating the functioning of a valve in combination with test equipment
- F16K37/0091—For recording or indicating the functioning of a valve in combination with test equipment by measuring fluid parameters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/0446—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with an obturating member having at least a component of their opening and closing motion not perpendicular to the closing faces
- F16K17/0453—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with an obturating member having at least a component of their opening and closing motion not perpendicular to the closing faces the member being a diaphragm
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/164—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side and remaining closed after return of the normal pressure
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Fluid Pressure (AREA)
Abstract
The invention relates to an intelligent pressure regulating center.A lower end of a pressure regulator valve body is connected with an explosion-proof actuator shell through a lower base valve sleeve; the upper end of the pressure regulator valve body is connected with the membrane disc assembly through the upper base valve sleeve assembly; the lower end of a lower valve shaft of the lower valve sleeve assembly is connected with an electromagnetic linear driver through a sealing guide sleeve; the upper valve head of the upper base valve sleeve assembly is connected with the lower end of the upper valve shaft; the spring and the spring sliding seat are arranged in the upper base valve sleeve, the guide bolts are symmetrically arranged on the spring sliding seat, the two ends of the guide bolts, which extend outwards, are contacted with the inner step of the flexible pressure adjusting ring, and the flexible pressure adjusting ring is matched with the upper base valve sleeve through threads; a display window gland and a die-casting aluminum alloy partition plate are arranged on one side of the explosion-proof actuator shell, and a computer main board unit, a power supply unit, an electromagnetic linear driver and an absolute position sensor are arranged in a formed closed cavity; the display key unit is electrically connected with the computer main board unit. The invention can realize voltage regulation, current limitation and flexible cutting, and reduce the configuration of a voltage regulating box and a voltage regulating station.
Description
Technical Field
The invention relates to a pressure regulating device, a current limiting device, a metering device and a cut-off cutting device, in particular to an intelligent pressure regulating center which mainly regulates pressure and has a multi-parameter control function.
Background
The gas pressure regulator is divided into two main categories according to national standard "town gas pressure regulator" GB-27790-2011: direct acting voltage regulators and indirect acting voltage regulators. The pressure regulator is a pressure reducing device for automatically regulating the pressure of the gas outlet so as to ensure that the gas outlet is stabilized in a certain range. With the development of the gas industry, pressure regulating equipment is continuously developed and perfected for over one hundred years, and various pressure regulators are appeared. For example: spring or gravity operated pressure regulators, reynolds pressure regulators, piston pressure regulators, weighing pressure regulators, kaolin pressure regulators, meander pressure regulators, axial pressure regulators, and the like. They mutually compensate for the structural and performance deficiencies, but the operating performance of each voltage regulator has inherent limitations as the operating principle of the film induction is not changed.
The pressure regulators all belong to purely mechanical semi-automatic regulating devices, have single function and large pressure regulating and stabilizing limitation, and the outlet pressure of large flow drops sharply, namely the pressure flow static characteristic index of the pressure regulator is poor-! The remote automatic control cannot be realized, the weak links of the film structure are maintained frequently, and various safety accidents are easily caused once the film is broken. The premise of normal operation of the traditional pressure regulator is that a certain front pressure (inlet pressure) is required to be ensured, otherwise, the pressure regulator cannot normally operate; and the traditional voltage regulator does not have remote controllability, and people must be dispatched to send vehicles to adjust and treat the vehicles on site, and the like.
Disclosure of Invention
The invention aims to provide an intelligent voltage regulating center. Six operation modes can be easily realized: the automatic pressure regulating mode, the automatic current limiting mode, the automatic low-flow mode, the multi-period pressure reservation mode, the multi-period current limiting reservation mode and the gas total quantity accumulation mode are respectively adopted. Meanwhile, the gas meter has the functions of gas metering, flexible safety cutting-off and the like.
In order to solve the technical problems, the invention adopts the following technical scheme:
the intelligent pressure regulating center comprises a pressure regulator valve body, an upper base valve sleeve assembly and a lower base valve sleeve assembly, wherein the lower end of the pressure regulator valve body is connected with an explosion-proof actuator shell through the lower base valve sleeve; the upper end of the pressure regulator valve body is connected with the membrane disc assembly through the upper base valve sleeve assembly; the lower valve seat sleeve assembly is provided with a lower valve shaft and a lower valve head, the lower end of the lower valve shaft is connected with the electromagnetic linear driver through the sealing guide sleeve, and the upper end of the lower valve shaft is connected with the lower valve head; the upper base valve sleeve assembly is provided with an upper valve head and an upper valve shaft, the upper valve head is connected with the lower end of the upper valve shaft, and the upper part of the upper valve shaft is connected with a rubber diaphragm and a large tray and is fastened by a nut; the spring and the spring sliding seat are arranged in the upper base valve sleeve, the lower end of the spring is arranged in the spring sliding seat, the upper end of the spring is contacted with the large tray, the guide bolt is symmetrically screwed on the spring sliding seat to be horizontally arranged, the guide bolt slides in a long hole of the upper base valve sleeve, the two overhanging ends of the guide bolt are contacted with an inner step of the flexible pressure adjusting ring, the flexible pressure adjusting ring is matched with the upper base valve sleeve through threads, and the guide bolt can be stirred up and down by rotating the flexible pressure adjusting ring to drive the spring sliding seat to move up and down so as to change the pretightening force of the spring; a pressure sensor, a communication module and a bus terminal are arranged in a rear cavity of the explosion-proof actuator shell; a display window gland and a die-casting aluminum alloy partition plate are arranged on one side of the explosion-proof actuator shell, and a computer main board unit, a power supply unit, an electromagnetic linear driver and an absolute position sensor are arranged in a formed closed cavity; the display key unit is electrically connected with the computer main board unit.
Compared with the prior art, the invention adopting the technical scheme has the outstanding characteristics that:
(1) The pressure regulator, the flowmeter, the flow limiting valve and the cut-off valve are integrated.
(2) The structure is simple, the volume is small, the weight is light, and maintenance is not needed.
(3) The pressure regulation does not depend on the sensing structure of the traditional leather film and the spring, avoids the weak links existing in the traditional technology, and improves the safety.
(4) The device can monitor pressure change through the pressure sensor, and automatically completes gas pressure regulation and stable depressurization by the computer main board unit according to the pressure change.
A further preferred technical scheme is as follows:
the rear end cover is screwed on the explosion-proof device shell to form an explosion-proof junction box, an access port is arranged at the rear cavity of the explosion-proof actuator shell, and the power line and the control line are led into the explosion-proof junction box through the access port.
The explosion-proof terminal box further improves the explosion-proof performance of this device, sets up the access mouth, is convenient for connect and sets up the wire.
The rear end cover is connected with the explosion-proof actuator shell through a lead seal anti-theft screw to limit, and illegal random disassembly is limited.
Through setting up the lead seal theftproof screw, make rear end cover and explosion-proof executor casing be connected more stably, and can realize certain theftproof function.
The lower valve head is provided with a rubber valve pad; the upper valve head is provided with a rubber valve pad
By arranging the valve pad, the sealing performance between the upper valve head, the lower valve head and the common valve port is better.
The upper end of the upper valve shaft is fixedly connected with the large tray and the rubber diaphragm through a fastening nut.
The cavity in the upper membrane disc is a pressure sensing cavity, and the flexible cut-off signal tube is communicated with the pressure sensing cavity.
Through setting up forced induction chamber, flexible cutting off signal pipe, can make this device have flexible cutting off function.
Drawings
FIG. 1 is a schematic perspective view of an embodiment of the present invention;
FIG. 2 is a cross-sectional view taken along A-A of FIG. 1;
FIG. 3 is a B-B cross-sectional view of FIG. 2;
FIG. 4 is a schematic diagram of the intelligent voltage regulation center control of the present invention;
reference numerals illustrate: 1-sharing a valve port; 2-lower valve shaft; 3-electromagnetic linear drive; 4-explosion-proof actuator housing; 5-wiring inlet; 6-lead sealing anti-theft screws; 7-a communication module and a bus terminal; 8-a pressure sensor; 9-a power supply voltage stabilizing unit; 10-display window gland; 11-a computer motherboard unit; 12-displaying a key unit; 13-sealing the guide sleeve; 14-a lower valve head; 15-valve pad; 16-upper valve head; 17-upper base valve sleeve; 18-a spring; 19-a rubber diaphragm; 20-coating a membrane disc; 21-upper valve shaft; 22-flexible cut-off signal tube; 23-lower membrane disc; 24-valve pad; 25-a pressure regulator valve body; 26-an inlet signal tube; 27-an outlet signal tube; 28-built-in battery pack; 29-plugging wires; 30-an absolute position sensor; 31-a lower base valve sleeve; 32-a spring carriage; 33-a guide bolt; 34-a pressure sensing chamber; 35-tightening a nut; 36-large trays; 37-a flexible pressure regulating ring; 38-a gas-sensing coupler; 39—pressure scale mark; 40-lead sealing anti-theft screws; 41-a distal control signal tube; 42-high-strength bolts; 43-rear end cap; 44-die casting aluminum alloy separator.
Detailed Description
The invention will be further described with reference to the drawings and examples.
Referring to fig. 1-3, an intelligent pressure regulating center is composed of a pressure regulator valve body, an upper valve sleeve assembly and a lower valve sleeve assembly.
The pressure regulator valve body 25 is provided with a common valve port 1, and the lower end of the pressure regulator valve body 25 is connected with the explosion-proof actuator shell 4 through a lower base valve sleeve 31; the upper end of the pressure regulator valve body 25 is connected with the membrane disc assembly through the upper base valve sleeve assembly; the two sides of the pressure regulator valve body are respectively provided with an inlet signal pipe 26 and an outlet signal pipe 27.
The lower end of the common valve port 1 is a lower valve head 14, and the upper end of the common valve port 1 is an upper valve head 16. The same common valve port 1 is provided with gas which enters from bottom to top and goes out from top to bottom, and the working sequence of the intelligent machine is that of the intelligent machine.
The lower valve sleeve assembly is provided with a lower valve shaft 2 and a lower valve head 14, the lower end of the lower valve shaft 2 is connected with the electromagnetic linear driver 3 through a sealing guide sleeve 13, and the upper end of the lower valve shaft 2 is connected with the lower valve head 14.
The electromagnetic linear driver 3 drives the lower valve shaft 2 to move in the vertical direction, so that the lower valve head 14 is opened or closed.
The pressure sensor 8, the communication module, the bus terminal 7 and the absolute position sensor 30 are arranged in the rear cavity of the explosion-proof actuator shell 4, and the rear end cover 43 is screwed on the explosion-proof actuator shell 4 to form an explosion-proof junction box. An access port 5 is arranged at the rear cavity of the explosion-proof actuator shell 4, and a power line and a control line are led into the explosion-proof actuator shell through the access port 5. The small hole of the explosion-proof actuator housing 4 is closed by a blocking wire 29.
The explosion-proof actuator housing 4 is provided with a remote control signal tube 41.
The rear end cover 43 and the explosion-proof actuator shell 4 are connected and limited through the lead seal anti-theft screw 40, so that illegal random disassembly is limited.
The other side of the explosion-proof actuator shell 4 is provided with a window gland 10 and a die-casting aluminum alloy partition plate 44, and a closed cavity formed by the window gland is internally provided with a computer main board unit 11, a power supply unit 9, an electromagnetic linear driver 3, an absolute position sensor 30 and the like; the display key unit 12 is connected with the computer main board unit 11 by a signal wire, and passes through the central hole of the die-casting aluminum alloy partition 44 to be sealed by epoxy resin.
The pressure sensor 8 senses a change in the gas pressure in the line of the outlet signal pipe 27. The outlet signal pipe 27 of the pressure regulator is communicated with the installation cavity of the pressure sensor 8, when the gas load at the downstream of the gas outlet end changes, the gas pressure in the pipeline changes, the signal sensed by the pressure sensor 8 changes, and the signal is sent to the computer main board unit 11, and the computer main board unit 11 gives an instruction to the electromagnetic linear driver 3 to drive the lower valve shaft 2 to open or close the lower valve head 14, so that the pressure is kept relatively constant all the time.
The power supply voltage stabilizing unit 9 supplies power to the electromagnetic linear driver 3, the pressure sensor 8, the computer main board unit 11 and the display key unit 12. The power supply voltage stabilizing unit 9 is provided with a built-in battery pack 28.
The lower valve head 14 is fitted with a valve pad 15. Upper valve head 16 is fitted with a valve pad 24.
The upper base valve sleeve assembly is provided with an upper valve head 16 and an upper valve shaft 21, the upper valve head 16 is connected with the lower end of the upper valve shaft 21, and the upper part of the upper valve shaft 21 is connected with a large tray 36 and a rubber diaphragm 19 and is fastened by a nut 35. The upper base valve sleeve is internally provided with a spring 18 and a spring sliding seat 32, the lower end of the spring 18 is arranged in the spring sliding seat 32, and the upper end of the spring 18 props against a large tray 36; the guide bolts 33 are symmetrically screwed on the spring sliding seat 32, the guide bolts 33 can slide in long holes of the upper base valve sleeve 17, two ends of the guide bolts 33 extending horizontally are contacted with inner steps of the flexible pressure adjusting ring 37, the flexible pressure adjusting ring is matched with the upper base valve sleeve through threads, the guide bolts can be stirred up and down by rotating the flexible pressure adjusting ring 37 so as to drive the spring sliding seat 32 to move up and down, the pretightening force of the spring is changed, and the gas pressure in the die cavity 34 acts on the large tray to be balanced with the elastic force of the spring; the lower membrane disc 23 of the pressure regulator is connected with the upper end surface of the upper base valve sleeve 17 through 8 high-strength bolts 42.
The membrane disc assembly is provided with a lower membrane disc 23 and an upper membrane disc 20, and the lower membrane disc 23 is connected with the upper membrane disc 20 through bolts; the rubber diaphragm 19 and the large tray 36 are clamped between the lower diaphragm plate 23 and the upper diaphragm plate 20, and the large tray 36 is arranged on the rubber diaphragm 19; the upper end of the upper valve shaft 21, the large tray 36 and the rubber membrane 19 are fastened by a fastening nut 35 to form a whole; the lower end is connected with a gas induction coupler 38 and an upper valve head 16.
The upper membrane disc 20 and the rubber membrane 19 form a closed sensing cavity 34, the flexible cut-off signal tube 22 is communicated with the pressure sensing cavity 34, and the flexible cut-off signal tube 22 and the outlet pressure signal tube 27 are respectively connected with an outlet pipeline of the intelligent pressure regulating center.
Referring to fig. 4, the pressure sensor collects the inlet pressure and the outlet pressure at the same time, the AD converter digitizes the analog signal of the pressure sensor and sends the analog signal to the computer main board unit for operation, the computer main board unit judges whether to open or close the main valve port of the pressure regulator according to the change of the digital signal of the outlet pressure sensor, and sends out a digital command to the electromagnetic linear driver 3 to complete the expected action through a multi-component compound algorithm; thereby always maintaining compliance with the preset outlet target pressure.
The absolute position sensor 30 records the real position of the valve port of the pressure regulator in real time to the computer main board unit, and meanwhile, the information acquired by the temperature sensor is also sent to the computer main board unit; the computer main board unit integrates the gas flow according to the mathematical model of the flow.
The intelligent voltage regulating center establishes wired or wireless remote two-way communication with the upper computer through the DTU to complete online real-time data acquisition, storage and control, and six operation modes including an intelligent voltage regulator are respectively an automatic voltage regulating mode, an automatic current limiting mode, an automatic low-current mode, a multi-period pressure reservation mode, a multi-period current limiting reservation mode, a gas total quantity accumulation mode and the like, and remote fault alarming.
Bidirectional seamless switching function:
when a power failure accident occurs, the computer main board unit of the computer main board unit 11 is converted into the built-in battery pack 28 for power supply after being perceived; the electromagnetic linear driver 3 drives the lower valve shaft 2 to forcedly open the lower valve head 14 to open the pressure regulator; the pressure at the common valve port 1 at this time increases rapidly and acts on the gas sensing coupler 38 to lock the upper valve shaft 21 and the upper control valve head 16 instantaneously; and switching to a mechanical air supply mode instantaneously.
When the power supply is restored, the computer main board unit 11 gives an instruction to the electromagnetic linear driver 3, the lower valve head 14 is quickly closed, the pressure at the common valve port 1 is quickly reduced, the gas inductive coupler 38 is separated, the upper control valve head 16 is opened to the maximum position, and the intelligent air supply mode is instantaneously switched, and the process is automatically completed in a dynamic state.
Flexible cutoff function:
the present embodiment can achieve flexible shut-off, and it is different from emergency shut-off valves of conventional significance.
The emergency shut-off valve must be manually reset once it is shut off; the flexible shut-off is a relatively slow shut-off process and automatically resumes operation when the outlet pressure is reduced, without manual reset. The flexible cutting working principle is as follows:
when the outlet pressure is abnormally increased, the outlet pressure enters the airtight gas pressure sensing cavity 34 through the flexible cutoff signal pipe 22, the gas pressure acts on the large tray 36 to drive the diaphragm 19 to displace downwards and overcome the elasticity of the spring, and the upper control valve head 16 is pushed downwards through the upper valve shaft 21, so that the rubber gasket 24 is tightly attached to the common method port 1, and flexible cutoff is realized.
The embodiment can realize voltage regulation, current limitation and flexible cutting, can greatly reduce the configuration of a voltage regulating box and a voltage regulating station, and reduces the installation space, the installation volume and the installation cost.
In summary, the intelligent voltage regulating center provided by the invention reserves and integrates a film disc structure applied for more than 100 years on the basis of an intelligent voltage regulator, and is mutually backed up and supplemented in performance; the intelligent pressure regulator is pressure reducing equipment which directly servo the main valve of the pressure regulator through the self precise digital actuator under the control of a computer so as to finish the regulation and stabilization of the gas pressure. The method is characterized in that the operation is completely supported by a software algorithm according to the signal change of the pressure sensor. Replacing the mechanical semiautomatic film induction technology of the prior art; therefore, the method is not limited by the inherent physical characteristics of the traditional film induction; artificial intelligence thinking can be implanted into the CPU of the intelligent voltage regulator. Meanwhile, the system has two-way remote data communication, history data storage and inquiry and remote online control; therefore, the pressure regulating center has active safety and passive safety management functions, can actively treat abnormal conditions such as overpressure, power failure, leakage and the like in the gas operation, and can remotely prompt and give an alarm. The safety of the gas transmission and distribution pipe network and the instantaneity and convenience of dispatching and commanding are greatly improved. The data scientific and modern management of the gas enterprise is fundamentally improved. And the networking, scientific, intelligent and systematic management and operation are easily realized. The integrated design of the pressure regulating central membrane disc structure is not different from that of installing an integrated monitoring pressure regulator at the downstream of the intelligent pressure regulator; the air supply is not stopped even in the event of a power failure.
The foregoing description is only of the preferred embodiments of the invention and is not intended to limit the scope of the claims, but rather the equivalent structural changes made by the application of the present description and drawings are intended to be included within the scope of the claims.
Claims (7)
1. The utility model provides an intelligent pressure regulating center, includes voltage regulator valve body, goes up base valve pocket subassembly and lower base valve pocket subassembly, its characterized in that: the lower end of the pressure regulator valve body is connected with the explosion-proof actuator shell through the lower base valve sleeve; the upper end of the pressure regulator valve body is connected with the membrane disc assembly through the upper base valve sleeve assembly; the lower valve seat sleeve assembly is provided with a lower valve shaft and a lower valve head, the lower end of the lower valve shaft is connected with the electromagnetic linear driver through the sealing guide sleeve, and the upper end of the lower valve shaft is connected with the lower valve head; the upper base valve sleeve assembly is provided with an upper valve head and an upper valve shaft, the upper valve head is connected with the lower end of the upper valve shaft, and the upper part of the upper valve shaft is connected with a rubber diaphragm and a large tray and is fastened by a nut; the spring and the spring sliding seat are arranged in the upper base valve sleeve, the lower end of the spring is arranged in the spring sliding seat, the upper end of the spring is contacted with the large tray, the guide bolt is symmetrically screwed on the spring sliding seat to be horizontally arranged, the guide bolt slides in a long hole of the upper base valve sleeve, the two overhanging ends of the guide bolt are contacted with an inner step of the flexible pressure adjusting ring, the flexible pressure adjusting ring is matched with the upper base valve sleeve through threads, and the guide bolt can be stirred up and down by rotating the flexible pressure adjusting ring to drive the spring sliding seat to move up and down so as to change the pretightening force of the spring; a pressure sensor, a communication module and a bus terminal are arranged in a rear cavity of the explosion-proof actuator shell; a display window gland and a die-casting aluminum alloy partition plate are arranged on one side of the explosion-proof actuator shell, and a computer main board unit, a power supply unit, an electromagnetic linear driver and an absolute position sensor are arranged in a formed closed cavity; the display key unit is electrically connected with the computer main board unit;
the pressure regulator valve body is provided with a shared valve port, the lower end of the shared valve port is a lower valve head, and the upper end of the shared valve port is an upper valve head;
the membrane disc assembly is provided with a lower membrane disc and an upper membrane disc, and the lower membrane disc is connected with the upper membrane disc through bolts; the rubber diaphragm and the large tray are clamped between the lower film tray and the upper film tray, and the large tray is arranged on the rubber diaphragm; the upper end of the upper valve shaft is fastened with the large tray and the rubber diaphragm into a whole through fastening nuts; the lower end is connected with a gas induction coupler and an upper valve head;
the upper membrane disc and the rubber membrane form a closed sensing cavity, the flexible cutoff signal pipe is communicated with the pressure sensing cavity, and the flexible cutoff signal pipe and the outlet pressure signal pipe are respectively connected with an outlet pipeline of the intelligent pressure regulating center;
when a power failure accident occurs, the computer main board unit of the computer main board unit is converted into a built-in battery pack for power supply after being perceived; the electromagnetic linear driver drives the lower valve shaft to forcedly open the lower valve head to open the pressure regulator; at the moment, the pressure at the common valve port is rapidly increased and acts on the gas inductive coupler to lock the upper valve shaft and the upper control valve head immediately; switching to a mechanical air supply mode instantaneously;
when the power supply is restored, the computer main board unit gives an instruction to the electromagnetic linear driver, the lower valve head is quickly closed, the pressure at the shared valve port is quickly reduced, the gas inductive coupler is separated, the upper control valve head is opened to the maximum position and is instantly switched to the intelligent gas supply mode, and the process is automatically completed in a dynamic state;
when the outlet pressure is abnormally increased, the outlet pressure enters the airtight gas pressure sensing cavity through the flexible cutting-off signal pipe, the gas pressure acts on the large tray to drive the diaphragm to displace downwards and overcome the elasticity of the spring, and the upper control valve head is pushed downwards through the upper valve shaft, so that the rubber gasket is tightly attached to the common law orifice, and flexible cutting-off is realized.
2. The intelligent voltage regulation center of claim 1 wherein: the rear end cover is screwed on the explosion-proof device shell to form an explosion-proof junction box, an access port is arranged at the rear cavity of the explosion-proof actuator shell, and the power line and the control line are led into the explosion-proof junction box through the access port.
3. The intelligent voltage regulation center of claim 2 wherein: the rear end cover is connected with the explosion-proof actuator shell through a lead seal anti-theft screw to limit, and illegal random disassembly is limited.
4. The intelligent voltage regulation center of claim 1 wherein: the lower valve head is provided with a rubber valve pad; the upper valve head is provided with a rubber valve pad.
5. The intelligent voltage regulation center of claim 1 wherein: the upper end of the upper valve shaft is fixedly connected with the large tray and the rubber diaphragm through a fastening nut.
6. The intelligent voltage regulation center of claim 1 wherein: the cavity in the upper membrane disc is a pressure sensing cavity, and the flexible cut-off signal tube is communicated with the pressure sensing cavity.
7. The intelligent voltage regulation center of claim 1 wherein: the gas firstly enters the lower end of the pressure regulator valve body, passes through the lower valve head controlled by intelligent control, passes through the upper valve head controlled by a mechanical membrane disc, and then flows out from the upper end of the pressure regulator valve body.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811651177.2A CN109519574B (en) | 2018-12-31 | 2018-12-31 | Intelligent voltage regulating center |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811651177.2A CN109519574B (en) | 2018-12-31 | 2018-12-31 | Intelligent voltage regulating center |
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| CN109519574A CN109519574A (en) | 2019-03-26 |
| CN109519574B true CN109519574B (en) | 2023-09-19 |
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| CN118564703A (en) * | 2024-08-02 | 2024-08-30 | 浙江新欧自控仪表有限公司 | Self-operated pressure regulating valve with high sensitivity |
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| CN104806796A (en) * | 2015-04-24 | 2015-07-29 | 倪琨 | Integrated intelligent pressure regulator |
| CN205504146U (en) * | 2016-02-02 | 2016-08-24 | 成都天能燃气设备有限公司 | From taking filter screen voltage regulator |
| CN206036363U (en) * | 2016-08-16 | 2017-03-22 | 四川长仪油气集输设备股份有限公司 | Collection superpressure cut off with valve after voltage stabilizing function voltage regulator as an organic whole |
| CN107044562A (en) * | 2017-01-19 | 2017-08-15 | 北京市公用事业科学研究所 | A kind of intelligent gas pressure regulator and application method |
| CN208123566U (en) * | 2018-04-27 | 2018-11-20 | 成都华泰燃气设备有限公司 | A kind of pressure regulator with silencing function |
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| CN109519574A (en) | 2019-03-26 |
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